Soundproofing Box Project
Although the tumbler isn't TERRIBLY loud... it was still a nuisance at times. Especially towards the tail end of the week, when the rocks have shrunk a little and it gets a little louder. The first thing I tried was just to put it in a cardboard box with some old 1/8th inch vinyl (it can help absorb sound) that was lying around. It was noticeably quieter, but not quiet enough. That is without even mentioning the motor housing was almost too hot to touch, after just an hour! Not wanting to fry the motor on my new brand tumbler, I began brainstorming ways to keep it quiet without sacrificing airflow. The natural course of thinking is "How about I put some holes in a box for a fan to blow air?" However, that leads to an obvious flaw... a hole means a great big place for sound to travel. Rather than scrap the idea of a fan to circulate fresh air, I had to think about how sound is mitigated in other systems that have airflow. The first two...